A Laboratory Manual in Physics: To Accompany Black and Davis' "Practical Physics"Macmillan, 1914 - 113 páginas |
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Términos y frases comunes
aluminum ammeter amperes angle apparatus average barometer bending binding posts block and tackle block of wood blue vitriol boiler bottle BOYLE'S LAW calories calorimeter candle power centimeter circuit coil column Compare compute Connect convex lens copper wire cubic curve Daniell cell deflection per 100 density distance doubtful figure electric equal volume expansion EXPERIMENT flask focal length force fulcrum galvanometer glass grams heat lamp lens lever load loss of weight magnet magnifying power measure metal meter stick millimeter mirror needle object paper parallel pinchcock plate position pressure Problem reading record resistance right triangle scale screen Set of weights shown in Fig side sight lines sinker sliding friction SPECIFIC GRAVITY spring balance starting friction stick BC stopper tabular form thermometer tube tumbler vibrations voltage voltmeter volume of water water Weight Weight of block Weight of water Wheatstone bridge width zinc
Pasajes populares
Página 62 - Grasp the coil with the right hand so that the fingers point in the direction of the current in the coil, and the thumb will point to the north pole of the coil (Fig.
Página 2 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Página 117 - We have, therefore, drawn as much of our illustrative material as possible from the common devices in modern life. We see no reason why this should detract in the least from the educational value of the study of physics, for one can learn to think straight just as well by thinking about an electrical generator, as by thinking about a Geissler tube. . . . " To understand any machine clearly, the student must have clearly in mind the fundamental principles involved. Therefore, although we have tried...
Página 117 - In preparing this book," say the authors in the Preface, " we have tried to select only those topics which are of vital interest to young people, whether or not they intend to continue the study of physics in a college course. " In particular, we believe that the chief value of the informational side of such a course lies in its applications to the machinery of daily life. Everybody needs to know something about the working of electrical machinery, optical instruments, ships, automobiles, and all...
Página 79 - Quickly turn the coil a quarter turn so that the plane of the coil is parallel to the magnetic field. Observe the direction of the induced current. After the galvanometer has come back to zero, rotate the coil another quarter turn and note the direction of the induced current. In a similar manner continue to rotate the coil one quarter turn at a time. In what position is the coil when the induced current is reversed?
Página 89 - REFLECTORS has the greater candle power. Furthermore, since the intensity of illumination decreases as the square of the distance, the candle powers of the two lamps are directly proportional to the squares of their distances from the screen. For example, let 16 = candle power of lamp S, and X = candle power of lamp X.
Página 61 - Fig. 260) — if one grasps the wire with the right hand so that the thumb points in the direction of the current, the fingers will point in the direction of the magnetic field.
Página 3 - As a general rule, in multiplying two numbers together, retain in the product only as many significant figures as there are in the least accurate factor. In...
Página 54 - Then quickly put the delivery tube of the water trap (Z7) into the water so that its end projects under water about 2 cm. Continue to stir the water slowly until the water gets to a temperature about as much above that of the room as the initial temperature was below it. Remove the delivery tube from the calorimeter and after stirring read the highest temperature which the water reaches. Finally, as soon as convenient, weigh with great care the calorimeter, water, and condensed steam and compute...